_Voice._--Mr. Skinner says in his notes: “In May, at least, these woodpeckers are sometimes noisy while calling to their mates. One gave a ringing _cleep-ep_, _cleep-ep_ call on May 25, 1933. It was somewhat similar to a flicker’s call.” Ralph Hoffmann (1927) says: “When a bird lights on a pole or limb already occupied, there is always mild excitement, fluttering of the wings, bowing and scraping, and always a lively interchange of harsh calls, like the syllables _chák-a_, _chák-a_, _chák-a chak_, dying off at the end.” W. L. Dawson (1923) gives the following interpretations of its notes: “A jeering, raucous voice, * * * _Jacob_, _Jacob_, _Jacob_; * * * _Kerack Kerack_;” and “_chaar chaar tchurrup_.” _Field marks._--The California woodpecker is conspicuously marked and need not be mistaken for anything else from any angle. When flying away, it looks like a black bird with an extensive white rump and with a white patch in each wing; when flying over or when perched facing the observer, the white abdomen and the broad black band across the chest are distinctive; if near enough, the color pattern of the head is easily seen. [1] Prof. Ritter’s extensive book (1938) on the California woodpecker appeared while this bulletin was in press.--EDITOR. BALANOSPHYRA FORMICIVORA ANGUSTIFRONS (Baird) NARROW-FRONTED WOODPECKER HABITS The Cape region of southern Baja California is the home of this subspecies. It is a well-marked race, which Ridgway (1914) describes as “similar to _B. f. formicivora_, but wing averaging much shorter, bill relatively larger, white frontal band decidedly narrower, lower throat usually much more strongly yellow, white area on proximal portion of remiges smaller, and the adult female with black area on crown much narrower.” William Brewster (1902) says of its haunts: This woodpecker, which seems to be confined to the Cape Region proper, is exceedingly abundant throughout the pine forests on the higher mountains south of La Paz and common in many places in the oaks at the bases of the mountains and among their foot-hills, ranging downward, according to Mr. Belding, to an elevation of about 700 feet. Mr. Frazar found it most numerous on the Sierra de la Laguna, during the last week of April and the first week of May. After that its numbers decreased perceptibly. It began breeding on this mountain the first week in June, but the breeding season was not at its height until the middle of that month. * * *